Toncan Iron is a highly refined open hearth iron of excep-
tional purity, with which both copper and molybdenum are al-
loyed in the proper proportion to provide maximum rust and cor-
rosion-resistance. That copper increases corrosion-resistance of
ferrous metals is a well established fact.
Toncan Iron contains twice as much copper as the best of
competitive ferrous materials. This additional copper has maxi-
mum effectiveness because it is alloyed in correct proportion with
Toncan Iron is a rust-resistant metal which is structurally
and chemically uniform. It is the same highly rust and corrosion
resistant metal all the way through — not just on the surface.
Open hearth steel
Open hearth iron
molybdenum in proper
Twke as much copper
TONCAN IRON SHEETS,
most rust-resistant ferrous
sheets in their price classl
• • »
Toncan Iron is not a steel. It is an iron. It is not merely
a copper-bearing iron. Toncan Iron is the only sheet metal on
t the.market today which combines a refined open hearth iron with
" : SO.T.B 'cfrggei: :amd\nyplybdenum. Because it contains twice as
. .mu&h copper as' Oth*er ; ferrous materials in its price class, Toncan
.•.It-otL-Vists ,l<5itger, costs less per year!
• • » * -
gives your clients
more for their money
Toncan Copper Molybdenum Iron was created expressly to resist
corrosion. Because of inherent chemical and structural differences
from all other ferrous materials in its price class, Toncan Iron gives
your clients more years of service at lower cost per year!
with uniform rust-resistance
Iron and steel rust first and most rapidly at
those points where there are chemical im-
purities or non-uniform grain structure. The
more uniform the metal, chemically and phy-
sically, the more uniform is its resistance to
Toncan Copper Molybdenum Iron is a highly
refined open hearth iron from which rust-
accelerating impurities have been removed
to the proper limit. Republic's long experi-
ence makes it possible to produce commer-
cially pure open hearth iron of great chemi-
Skillful alloying of the correct proportion
of copper and molybdenum with the uniform-
ly pure iron creates a fine, equi-axed grain
structure — structural uniformity.
Toncan Copper Molybdenum Iron
both chemically and structurally
rust equally and uniformly all the way
through the metal.
TONCAN IRON HAS GREATER "NOBILITY". . . resists rust longer
Rust is iron oxide — iron combined with oxy-
gen. Under 400° F., iron will not combine
with oxygen (will not rust) until the iron
has first been dissolved.
Some metals dissolve, or go into solution, eas-
ily. Others, because of their inherent nature,
are more "noble," which means that they have
greater resistance to solution. For instance:
gold, silver and platinum, known as the
"noble metals/' are famous for their resist-
ance to rust.
Toncan Copper Molybdenum Iron — because
it contains both molybdenum and twice as
much copper as competing copper-bearing
irons and steels — has greater "nobility.
Therefore it has greater resistance to rust
and corrosion than any other ferrous ma-
terial in its price class!
As a result of its greater "nobility," plus
chemical and structural uniformity, Toncan
Iron lasts longer on the job, gives your cli-
ents more for their money !
TONCAN IRON HAS GREATER RESISTANCE
to solution — therefore to rust and corrosion — than
copper-bearing steel and non-copper-bearing iron
and steel. The above chart is based on the Elec-
tromotive Force Series of Metals*, which is the
commonly accepted scientific demonstration of the
relative "nobility" — or resistance to solution
*Indicates relative potential against normal
trode KCL.Hg2 Cl2/Hg. at 25 C Volts after
Sodium Chloride Electrolyte.
1 hour in 1%
GUARDS YOUR REPUTATION
Toncan Iron offers a long record of proven success under
severe service conditions. Made exclusively by Republic Steel
Corporation, world's largest producer of alloy steels, Republic
Toncan Iron is one of the oldest and best-known names in the
building industry. It is a name which adequately protects the
architect's reputation for good judgment in the selection of
FABRICATES EASILY, ECONOMICALLY...
• Toncan Iron gives the opportunity to do a better, more economical job because Toncan
is easier to work. Its galvanized coating does not peel off easily. Toncan Iron is ductile,
flat, easily formed and welded. It is uniform, structurally and chemically, from sheet to
sheet, bundle to bundle, carload to carload.
By specifying Toncan Iron you take an important step in avoiding inferior sheet metal
work or delayed progress on your jobs. Sheet metal fabricators like to work Toncan Iron.
ON THE OCEAN FRONT at Daytona Beach, Florida, beautiful Surf & Sand Apart-
ment Hotel is exposed to severely corrosive salt spray and air. Because of its corrosion-
resistance under these extreme conditions, Toncan Copper Molybdenum Iron was used
for gutters, downspouts and ducts. Architects ■ Ochert and Teare, Cleveland, Ohio.
COSTS YOUR CLIENTS LESS PER YEAR
ance to rust and
corrosion is impor-
tant, Toncan Iron gives the greatest
value per sheet metal dollar. It has out-
lasted competitive ferrous materials
on downspouts and ducts, on roofs and
on sides of buildings, along seaboards
and swamps, on farms and factories
in fact, every place where the hazard
of corrosion exists. Because it lasts
longer, Toncan Iron costs less per year!
What you get
When you specify "TONCAN IRON"
You are calling
for the product
famous as the
uniformly rust -
resistant sheet metal containing twice
as much copper as competitive ferrous
materials — a metal which helps to build
your own reputation, which fabricators
respect for its working qualities and
from which your clients will experience
the very best value for their money.
7500 LBS. of Toncan Sheets were used for
roofing, gutters, etc., on the cabana at the
fashionable Arrowhead Springs Hotel at Ar-
rowhead Springs, California. The Architect
was Paul Williams,
TWELVE TONS of Toncan Sheets were
used in the heating and ventilating ducts of
the General Electric office and warehouse
building at Los Angeles, California. Archi-
tect: Albert C. Martin.
n every sheet me
sheets — remain about
same whether you speci
ncan Iron or some
only a little
for the same
other material. In fact, Toncan is so easy to work, so uniform in quality,
that it often lowers the cost of forming and applying.
The PRICE of Toncan Iron for a given application is
higher than the price of other ferrous sheets commonly used
type of work.
But the COST (price divided by years of service) is often much less
than the cost of other "cheaper" materials!
Where long life, greater resistance to rust corrosion, and freedom
from frequent expensive repairs and replacements are important — it COSTS
LESS in the long run to use Republic Toncan Iron.
nt the Ton-
cans * a( je i* aT cbne^
l W. little-
<t . FEW SOI&&&1
S, 't^O^o^f^ ft
°- h „ r«is«a» ce T o„can was use
THE SLIGHT extra
cost of Toncan Iron for
gutters and leaders on
this Chestnut Hill. Mass.,
home will pay dividends
in extra years of service.
Architect : Eleanor Ray-
SMALL EXTRA cost
of the 70 tons of Toncan
Iron corrugated sheets
used for siding and roof-
ing on the factory (be-
low) of Owens-Illtnois
Pacific Coast Company
at Los Angeles was well
justified. Note the fine
condition of this building
after ten years of use.
beautiful Lake Fore*
III residence of archi
tect Jerome Robert Cet
ny. Here Toncan Iron
used on all decks, sad-
dles, tops of bay wit
dows, chimney caps and
air conditioning ducts.
THE COST of labor was
86' /< o the total cost of
installing the gutter on
the "eyebrow" roof of
this house (left). Th
cost will not be repeated
soon because only 90c
extra put Toncan Iron on
TONCAN IRON SHEETS FOR RESIDENCES
HARMONIZING perfectly with its unusual set-
ting, this roomy home in Bel-aire, Los Angeles,
California, was designed by Paul Laszlo. Galvan-
ized Toncan Iron, 26 gauge, was used throughout
this outstanding building.
ANOTHER BEAUTIFUL HOME of distinction in
Lake Forest, Illinois — for the ducts of which rust-
resisting Toncan Iron was used exclusively. Archi-
tect: Jerome Robert Cerny. Mr. Cerny also speci-
fied Toncan Iron for 'Trillium Run", his own home.
THE BEAUTIFUL CORINTHIAN columns in
front of this residence in Sbreveport, La , were
made from Toncan Iron. Architects: Jones,
Roessle, Olschner and Weiner. Fabricator : H. H.
Bain Sheet Metal Company.
ALL AIR CONDITIONING ducts and even the
hood over the kitchen stove in this Nashville,
Tennessee, home were made from Toncan Iron.
Architects: Warheld and Keeble. Sheet Metal
Contractors: T. L. Herbert and Sons Company.
TONCAN IRON SHEETS FOR INSTITUTIONS
A TOTAL of six thousand pounds of long-lasting
Toncan Iron Sheets were used in constructing the
ducts at Ahrens Trade School, Louisville, Ken-
tucky. The Consulting Engineers on this job
were Warren and Ronald.
APPROXIMATELY eight tons of Toncan Copper
Molybdenum Iron Sheets were used for the ven-
tilating ducts of beautiful Long Beach Junior Col-
lege, Long Beach, California. This school was
built in 1925. Architect: Jess Jones.
TONCAN IRON Sheets were used in building
beautiful Woodworth School at Dearborn, Michi-
gan. The architect was C. R. Jensen. The greater
corrosion resistance of Toncan Iron pays dividends
in the extra years of life, fewer replacements.
ABOUT 20 TONS of Toncan Iron have been ap-
plied on distinctive Old Dartmouth Hall at Dart-
mouth College, Hanover, N. H. The architect was
Jens Friedrick Larson. W. H. Trumbull was the
Toncan Iron Sheets for Heating and Air-Conditioning
* In the selection of ferrous materials for air-conditioning systems, there is the ever-
present problem of combating corrosion in (1) central station air-conditioning units
and (2) ducts through which the conditioned air is carried to different parts of the build-
ing Replacement of failed metal parts in air-conditioning installations is an extremely
costly matter. Hence, insurance of maximum life for these parts is a fixed responsibility
of the architect or engineer.
Toncan Iron has demonstrated its ability to prolong the life of air-conditioning
equipment through its stubborn resistance to these corrosive conditions.
A VIEW of the
Toncan Iron air
in a Wilmington,
building. 7 carloads
of Toncan Sheets
and 4 of Toncan
Pipe were used.
Fabricator: W. F.
HERE IS a close-
up of the Toncan
Iron fan housing
and air washers at
gan. These were
fabricated by the
TONCAN IRON Sheets were
used in the air-conditioning
units (below) of Laclede Pack-
ing Company, St. Louis, Mis-
souri. Fabricator: Midwest
Piping and Supply Company.
Engineers: R. H. Tait & Sons.
TWO CARLOADS of
Toncan Iron Sheets were
used for the duct work
(below) at Virginia State
Medical College, Rich-
mond, Virginia. Archi-
tects: Baskervill & Son.
SHOWN below are Ton-
can Iron ducts in the
building of the Associ-
ated Telephone Com-
pany, Santa Monica, Cal.
Engineer and Architect:
Toncan Iron Sheets for Factory Maintenance
rC The designer of industrial buildings must, of course, plan a structure capable
of withstanding the ravages of time and the weather. But in addition, he must
also provide protection against quick destruction by the extremely corrosive
smoke and other factory by-products to which most industrial buildings are con-
Toncan Iron is an expert alloy of highly refined open hearth iron, molybde-
num, and twice as much copper as the best copper-bearing steel. It was created
to resist corrosion. It gives your client longer service — at lower yearly cost!
MANY YEARS of satis-
factory service on other
buildings convinced Ohio
Forge and Machine Cor-
poration that Toncan
Iron was the metal to
use throughout their
plant. The drop shop
building is shown below.
years ago the soy
plant (left) was
roofed and sided
with Toncan sheets,
still in excellent
condition. So Ton-
can was specified
for the addition in
the tower of this
(right) at Buffalo,
New York, was
made from corro-
can Iron Sheets.
Fabricator : Schmahl
Sheet Metal Works.
VENTILATORS and skylights
on this garage at Greensboro,
North Carolina, are assured a
long life. Made from Toncan
Iron in 1928, they are still in
good condition. Architect: /.
STANDS UP under the
corrosive conditions in
industrial centers such
as Cleveland, Ohio. The
Toncan Iron roof of The
Steel Improvement and
Forge Company was in-
stalled in 1927.
— . ■■ «
Specify TONCAN IRON SHEETS
Toncan Iron Sheets are stocked by jobbers in all
large cities. Be sure to specify: "All sheet metal
work shall be rust-resisting Toncan Copper Molyb-
denum Iron manufactured by Republic Steel Corpora-
tion." In cases where public institutions do not use
trade-names in specifications, Toncan Iron Sheets
may be specified as: "Alloyed iron sheets of open
hearth iron, copper and molybdenum produced by
the basic open hearth process, containing no less than
.40 per cent copper and .05 per cent molybdenum/'
For your protection, every Toncan Iron galva-
nized sheet is stenciled at approximately two-foot
intervals with the Toncan Iron trademark in green.
Smaller formed products are die stamped with the
trade-mark and maker's name. The gage also is
Look for the green Toncan Iron trade-mark — it's
your assurance of longer sheet life, easier working
quality, and greater economy.
Forms and Finishes
• Hot-Rolled, Galvanized, Galvannealed, Terne
Coated Flat Sheets, in all the usual gages and var-
ious popular forms of roofing, galvanized or painted,
are available. Roofing may be had in 1J4» 2, 2y 2 and
3 in. corrugated, Triple Drain, in Pressed Standing
Seam; in 2, 3, 4, 5 and 6 V-Crimp; Pressed Standing
Seam; Double Cross Lock Roll Roofing; Roll and
Cap Roofing; Weatherboard Siding; Cross Corru-
gated; and in Plain and Rock Face Brick and Stone
SIZES AND GAGES
Commercial Galvanized and Special Tight Coat,
well as formed roofing products. 12 to 28 U, S.
inclusive. Width range, 24 in. to 48 in. Length,
in, to a maximum of 144 in.
Hot-Rolled Sheets — 8 to 26 U. S. Gage, inclusive.
Width range, 12 A in. to 60 in. Length, 30 in. to a
maximum of 192 in.
Heavy Cold-Rolled and Light Cold-Rolled
U. S. Gage, inclusive. Width range 24 in.
Length, 60 in. to a maximum of 120 in.
7 to 24
to 63 in.
Long Ternes — 14 to 28 U. S. Gage, inclusive.
Width range, 24 in. to 49 in. Length, 60 in. to a max-
imum of 144 in.
Toncan Iron Oven Lining and Toncan Iron Galvan-
nealed — Gages 16 to 28, inclusive. Width up to 54
in. Lengths to 144 in.
Corrugated Roofing and Siding
(a) Galvanized — Present standard
corrugations. In all lengths, 5 ft. in. to 12 ft. in.
in 26 gage and heavier, even gages.
-Present standard widths and corru-
gations. In all lengths, 5 ft. in. to 12 ft. in. in
26 gage and heavier, even gages.
This table indicates
the rolling limits of
Toncan Iron Sheets
in hot-rolled, galvan-
ized, heavy hot-rolled
annealed and special
finishes, with the ex-
ception that hot-
rolled, annealed Ton-
can Iron Sheets ar
not made lighter than
26 gaee, while gal-
vanized sheets are
not supplied in great-
er length than 144
in. nor wider than 48
in. Uncoated sheets
can be furnished in
widths and lengths
greatly in excess of
those shown here.
Details upon appli-
ROLLING LIMITS TONCAN IRON SHEETS
LENGTH IN INCHES
24" 26" 28" 30" 32 ' 34"I36" 38"|40 "J42" 44" 46"|48" 50"|52"!54" 56"|58"|60
144 144 144 144 144 144 144 144 120
144 144 144 144 144 144 144 144 120 120
No. 26 144 144 144 144 144'144 1 144 144 144 144 120
and 24 144 144 144 144 144 144
No. 23 144 144 144 144 144 144
and 20 144 1441144 144 144 144
& heavier 144 144 144 144 144 144 144 144 144 144 144 144
144 144 120 120
144 144 144 120
144 144 144
144 120 120 120
TONCAN IRON Plates and Strip
• Rust-Resisting Toncan Iron Plates are made in thick-
nesses ranging from No. 10 BWG to 2 in. Sizes
range from 24 to 150 in. in width and from 190 to
640 in. in length, depending upon thickness. Hot-
rolled plates are also available in Steel, Republic
Double Strength Steel and Enduro Stainless Steel.
Hot-Rolled Toncan Iron Srrip is available in widths
from 3 J /2 in. to 36 in. Through special arrangements,
it can be made in widths narrower than 3]/ 2 in., in
which case the lightest limit is 16 gage.
The lightest gage in which cold-rolled Toncan
Iron Strip is offered is 22 gage. All widths available.
MORE COMPLETE DATA ABOUT TONCAN IRON SHEETS, PLATES
REPUBLIC FORMED ROOFING PRODUCTS
V-Crimped Roofing: Reasonable in cost, it can be
applied over close sheathing to strips spaced 4 or 5
inches apart, or over old shingles. The 3 V-crimped
makes a stiffer sheet than the standard, while 5 V-
stronger. All three styles supplied in
7, 8, 9, 10, 11 and 12 ft., and in gages
Actual covering width, 24 inches.
crimped is still
lengths of 5, 6,
24 and lighter.
Corrugated Sheers: Provide light weight, great lin-
eal rigidity, plus fire protection in roofing and siding
for industrial buildings, warehouses, mine buildings,
and other structures in the vicinity of railroads. Also
ideal for barns, garages and a wide variety of other
buildings. The 1^4-in. style supplied in gages 20
and lighter; 2, 2 l / 2 and 3-in. styles in gages 10 and
lighter. Both styles 26 or 21 l / 2 in, wide; lengths, 5, 6,
7, 8, 9, 10, 11 and 12 ft.
Roll Roofing: Especially useful with slight roof
pitch and for wide areas. Cross seams double locked.
50 lineal feet in each roll. Covering width 24 in.
Gages 26 and 28. Also available in Roll and Cap
(with caps and cleats) and Self-capping Roll Roofing.
No nails driven through material when applied.
Republic's New Triple-Drain Roofing
Makes leaks impossible. Not one, not two, but actually
three channels! Water must climb 4 "ridges" and 3 "valleys."
Triple-Drain gives you these plus features:
No water or dust, no
chemical reaction on flat
2. Fool-proof nailing guide.
3. Center crimp for rigidity.
4. Guide for top lap insures
5. Wind deflector - no wind
buckling or capillary ac-
Rib stiffeners - no wind
flapping - prevents sy-
Steep "V" channels -
water runs off faster -
keeps channels clean
keeps dust or chaff from
Nail indentation - non-
slip nail guide.
Made of prime sheets resquared before forming— no
seconds — perfectly fabricated. Full weight galvanizing.
Rolling bends — no sharp bends to cause galvanizing to chip
or crack. For roofs of J /4 pitch or more.
EASY TO APPLY — WATERPROOF — FIREPROOF
EXCELLENT PROTECTION AGAINST LIGHT-
NING WHEN PROPERLY GROUNDED
LITERATURE DESCRIBING THESE
OTHER REPUBLIC FORMED ROOFING
PRODUCTS. ..WRITE REPUBLIC STEEL CORPORATION
These zinc-coated sheets take paint, enamel and
lacquer easily — and grasp it with long-time adher-
ence. Coated electrically, they don't flake or pow-
der in the dies, don't crack, don't peel.
You can bend Electro Paintlok Sheets, stamp
them, draw them and paint them — with outstanding
results. They are tailor-made to meet modern re-
quirements. Whether you choose to paint, enamel
or lacquer Electro Paintlok Sheets, their pure zinc
coating, applied by Republic's electric process,
provides a degree of mechanical adhesion never
The same corrosion-resistance which has en-
abled Toncan Iron Sheets to set so many service
records is also available in Toncan Iron Pipe.
Wherever the going is tough, where corro^ e con-
ditions require pipe with maximum ability to com-
bat corrosion. Toncan Iron Pipe is a safe specifi-
cation. Complies with Federal Specification
WW-P-403a. Type III
Check these advantages:
1 Toncon Iron Pipe hos high corrosion-resistance.
This chemically and structurally uniform alloy
oi open hearth iron, copper and molybdenum in
the proper proportions has high nobility — a high
BASE METALS AVAILABLE
Republic Electro Paintlok Sheets are available
in plain open hearth steel, U-Loy copper-bearing
steel and in rust-resisting Toncan Copper Molyb-
denum Iron, exclusive product of Republic Steel
The standard surface finish of these metals will
meet normal production requirements of most
products. For example, signs, washing machine
lids and refrigerator parts are only three of the
many being made successfully without an extra
treatment or burnished finish. Arrangements can
be made, however, for additional surface prepara-
tion when circumstances make this advisable.
All grades of Republic Electro Paintlok Sheets
can be supplied stretcher leveled and, if ordered,
resquared where extra flatness is required.
GAGES AND SIZES
Electro Paintlok Sheets are available in gages
14 to 24 inclusive. Widths range up to 60 inches,
in gages 14 to 20 inclusive, and to 53 inches in
gages 21 to 24 inclusive. These sheets are of-
fered in lengths up to 144 inches. If your require-
ments are not met by these ranges, let us know.
We will be glad to discuss your problem.
resistance to dissolution in liquids. It also pos-
sesses a quality of uniform resistance to solu-
tion, thus minimizing chances for pitting and
2. It is free from mill scale. Mill scale in direct
contact with iron and a current-carrying solu-
tion forms galvanic cells which promote rapid
selective corrosion with resultant premature pit-
ting type failure. Freedom from mill scale
eliminates possible failure from this cause.
3. If hos high ductility. Bending and forming oper
ations can be performed quickly and easily.
This means lower fabrication costs.
4. It can be rapidly and cleanly threaded. This meant
tight joints — lower threading costs.
5. It is manufactured by the most modern ond im-
proved processes. Sizes % to 1*4 -inch are made
by the new and improved continuous butt weld
process. Sizes 2-inch to 16-inch are made by
Republic's perfected electric resistance weld
Toncon Iron Welding Fittings ond
ovoiloble Toncan Iron Pipe
Standard, Extra Heavy and
Welding Rod ore
is available in
GET COMPUTE INFORMATION ABOUT ELECTRO PAINTLOK SHEETS
Where Republic Enduro Stainless Steel Can
Used in Architecture
• A list of all possible applications for En-
duro in architecture would be a list of prac-
tically all uses to which any metal can be put
in any building. Palatial office building and
modest cottage, huge industrial plant and
small store — all can profitably employ Enduro
Stainless Steel for utility, beauty, or both.
Enduro is the family name of a complete
series of corrosion and heat-resisting steels
manufactured by Republic — world's largest
maker of alloy and stainless steels.
Enduro resists corrosion better than any
other ferrous material. Properly selected and
applied, it is rust-proof and will not tarnish
when exposed to the atmosphere. That's why
it is called "stainless steel." Silvery-white En-
duro is the same beautiful, strong metal all the
It is easily cleaned — and looks as sanitary
as it actually is. Stronger than ordinary steel,
Enduro is excellent for applications where
both high strength and high corrosion-resist-
ance are necessary. It resists scaling (oxida-
tion) at high temperature. It is readily work-
able and can be fabricated by the usual com-
An important architectural advantage of
Enduro is the ease with which it can be com-
bined with other materials. Its gleaming, sil-
very lustre blends perfectly with glass, plas-
tics, non-ferrous metals, wood, brick, marble,
stone, concrete, etc.
Distinctive combinations of different surface
finishes of Enduro are easily obtained. Or, it
may be etched and filled in with color, either
in solid tones or in air-brush effects.
Enduro has been used for decorative ef-
fects on some of the country's finest buildings.
Yet, it is equally suitable for such practical
purposes as heater smoke pipes and conductor
pipes, where it lasts many times longer than
ordinary pipe with resultant savings and free-
dom from trouble.
LOUVRE heads, jambs, sills and frames
are Enduro at Waco Coca Cola Bottling
Co., Waco, Texas. Architect: R. V.
D err ah. ENDURO is used on railings,
banisters, food cases, balconies and trim
at Forum Cafeteria (left), Chicago, 111.
Architects: Loewenberg and Loewenberg.
REPUBLIC STEEL CORPORATION, CLEVELAND, OHIO, FOR
FACTS ABOUT ENDURO STAINLESS STEEL